Instantly see the hidden metadata inside any PDF — author, creation date, software used, page count and more. Everything runs in your browser.
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Every PDF file contains a hidden layer of information called document properties or metadata. This includes the document title, the name of the author, the software that created the file, and timestamps for when it was created and last modified.
Metadata is useful for document management, auditing, and verifying the origin of a file. For example, you can check whether a contract was last modified after it was supposedly signed, or identify which software was used to generate an invoice.
Many PDFs — especially scanned documents and forms from government websites — have empty metadata fields. That is completely normal.
JustFill automatically detects and fills every form field — even on flat PDFs with no embedded form metadata.